US5142083AExpiredUtility

Tetrahydroabietyl organophosphites

41
Assignee: GEN ELECTRICPriority: Jun 7, 1990Filed: Jul 16, 1991Granted: Aug 25, 1992
Est. expiryJun 7, 2010(expired)· nominal 20-yr term from priority
Inventors:William P. Enlow
C08K 5/524C07F 9/65746C07F 9/141
41
PatentIndex Score
4
Cited by
5
References
5
Claims

Abstract

Hydrolytically stable phosphite compositions for melt flow and color stabilization of thermoplastics may be prepared from crude tetrahydroabietyl alcohol. The phosphites may be prepared by reacting said alcohol with an organophosphite, such as by transesterification. Other synthesis techniques may also be used.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A cyclic tetrahydroabietyl organophosphite ester. 
     
     
       2. The transesterification reaction product of tetrahydroabietyl alcohol and a cyclic organophosphite. 
     
     
       3. A compound having the formula: ##STR3## wherein R is tetrahydroabietyl. 
     
     
       4. A compound having the formula: ##STR4## wherein R 1  and R 2  are individually selected from the group consisting of alkyl, aryl, alkaryl, and aralkyl, R 3  is tetrahydroabietyl and Y is a carbon-carbon bond, C n  H 2n , S, O or N. 
     
     
       5. Tetrahydroabietyl ethylidene bis(2,4-di-tert-butylphenyl)phosphite.

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